Loom for weaving pile fabrics.



A. VELUARD.

LOOM FOR WEAVING PILE FABRICS.

APPLICATION FILED sum: 3.1914.

3 SHEETS-SHEET I.

ATTORNEY.

-OLUMBIA PLANOGRAPH cc..\vAsmNG'rDN, u. c.

A. VELUARD,

LOOM FOR WEAVING PILE FABRICS.

AZPPLICATION FILED 1UNE3. 1914.

' Patented Nov. 9, 1915.

' 3 SHEETS-SHEET 2- ni' F r jf F 2 l l 22 f5 W ATTORNEY.

. QQQJVMAM A. VELUARD. LOOM FOR WEAVING PILE FABRICS.

APPLICATION FILED JUNE 3, I914.

1,159,436, Patented Nov. 9, 1915.

3 SHEETSSHEET 3.

WITNESSES llVVE/VTOS;

findrl elmdrd COLUMBIA PLANDGRMH CO-,WASHINGTON. D4 :2.

ANDRE VELUARI), OF PHILADELPHIA, PENNSYLVANIA.

LOOM FOR WEAVING PILE FABRICS.

Application filed June 3, 1914.

T aZZ whom it may concern Be it known that I, ANDRE VELUAnn, a citizen of the Republic of France, reslding at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Tmpro vements in Looms for Weaving Pile F abrics, of which the following is a specification.

My invention relates to improvements in looms for weaving and cutting the pile or floats in fabrics having the pile or floats formed of weft threads, wherein the pile or floats are formed over wires which extend in the direction of the warp and wherein knives are employed to cut the pile loops or floats thus formed.

The object of my invention is to provide a novel, simple and eflicient means to hold the wires in place and maintain them taut during the operation of the loom; and to provide a novel, simple and efficient cutting means having provision whereby the kmves thereof may be readily and separately removed from the machine or placed therein, as occasion may require, without disturbing the wires.

The invention consists of the elements and the combinations of them as will be hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention: Figure 1, is a vertical section, showing parts of a loom havlng my 1nvention applied thereto. F 1g. 2, 1s a plan view of parts of the breast beam and the plle wires and their supporting and actuating devices. Fig. 3, is a vertical section on line 3-3 of Fig. 2, including a part of a p le wire heddle and the portion of the pile wire extending therethrough. Fig. 4, 1s a detail showing the eye of the pile-wire heddle. Fig. 5, is a side view of a modification of the knife, its support and adjuncts, certain parts being shown in section. Fig. 6, we plan view of the knife shown in Fig. 5, 1ts support and a portion of the pile wire. Fig. 7, is a side View of the knife support shown 1n F ig. 5, showing the knife clamping device in the inoperative position. F 1g. 8, 1s a side view of the knife shown in Fig. 5. Fig. 9, is a section, on line 99 of Fig. 5.

Referring first to Figs. 1, 2, 3 and 4 of the drawings, 2 designates the loom frame, 4 the breast beam, 5 the take-up roll for the fabric and 6 the lay. Each end of the lay 6 is connected by a bar or rod 7 to a crank 8 on a shaft 10 which is journaled in the Specification of Letters Patent.

Patented Nov. 9, 1915.

Serial No. 842,563.

loom frame and which is rotated in the usual manner to actuate the lay.

The warp threads 11 are raised and lowered by the harness 12, and the woven fabric 13 is wound upon the take up roll 5 in the usual manner during the weaving operation. Extending in the direction of the warp threads 11 is a set of flexible pile wires 14, usually equal in number to the rows of floats or pile tufts to be produced in the fabric. Each pile wire 14 extends freely through an eye 15 in a heddle 16 carried by a heddle frame 17 of usual form; and each pile wire 14 extends forwardly from the eye 15 and rearwardly from the eye 15, as shown. The rearward portion of each wire 14 extends over and around a bar 18, and down through and below an eye in a bar 19 and has a suitable weight or lingo 20 attached to the end thereof. The bars 18 and 19 extend transversely to the wires 14 and are supported by suitable brackets on the frame 2. The forward end of each pile wire 14 is attached to and terminates in a rigid projection 21 which forms, in effect, a continuation of the wire 14; and each projection 21 is formed on a knife-carrying part or member 22 which serves as a means to hold the forward end of the wire in place. Each part or member 22 has a knife 23 formed thereon and provided with a cutting edge facing the pile wires 14 and rising from the forward end of its projection 21 for a purpose hereinafter explained. Each part or member 22 has a groove 24 formed in the bottom thereof which is slidably fitted to a rib 25 formed on and extending longitudinally of a bar 26 which extends transversely to the pile wires 14 and warp threads 11. The members 22 are prevented from being displaced from the rib 25 by a retaining bar 27 having its ends secured to the ends of the bar 26. The bottom face of the retaining bar 27 is adapted to engage the upper faces of the members 22 and retain them in vertical position, and, at the same time, permit lateral movement of the members, so that the pile wires 14 may automatically accommodate themselves to the positions of the rows of pile loops being formed in the fabric.

The bar 26, adjacent to each end thereof is provided with a roller 28 which rests upon a plate 29 projecting from and secured to the breast beam 4, the plate 29 serving to support the end of the bar 26. Each end of raising and lowering of the heddles 16. The

the bar 26 is connected by a link 30 to the upper end of a lever 31 which is fulcrumed, at 32, on the loom frame 2 and has its lower end connected by arod 33 to a strap 31'- which surrounds an eccentric 35 on the shaft 10, whereby, during the rotation of the shaft 10, the members 22 and knives 23 carried thereby will be reciprocated longitudi nally or in the direction of the warp threads 11.

The operation is as follows: The interweaving of the warp and weft threads to form the body of the fabric 13 is effected in the usual well known manner; and the heddles 16 are raised and lowered at certain intervals during the weaving operation, to raise and lower the pile wires 14: above and below the shuttle path, similar to the raising and lowering of the warp threads 11, and by the usual well known mechanism of the loom for raising and lowering the warp threads. During the weaving operation, the shuttle is passed across the lay 6 under and over the pile wires 14: and the pile loops or floats are produced over the pile wires 14. in the usual manner. As rapidly as the loops or floats are produced they are beaten up by the lay 6 and pass on to the rigid projections 21 and thence to the cutting edges of the knives 23. As the loops or floats move along the projections 21, during the taking up of the finished fabric by the roll 5, the knives 23 are longitudinally reciprocated by the eccentrics 35 and their connections, as previously explained, and the projections 21 and wires 14L slide back and forth through the rows of advancing pile loops or floats which are cut by the knives 23 as the loops or floats successively meet and pass the cutting edges of the knives.

The pile wires 14 are kept substantially taut by the weights 20 which move up and down and take up the slack which would otherwise occur in the wires 14 during the reciprocations of the members 22 and the fabric with its out pile loops passes on from the knives 23 and beneath the bar 26 and around the breast beam 4: to the take-up roll 5.

Referring now to the modification shown in Figs. 5, 6, 7, 8 and 9 of the drawings, the member or part 22 and its projection 21 are formed of a single piece of sheet metal bent to form a groove 38 in the top of the projection 21 and to form two side members 36 and a bottom 37 in the forward body portion of the piece of sheet metal, the space between the side members 36 forming a con tinuation of the groove in the top of the projection 21 and the bottom 3 forming a continuation of the bottom of the groove 38. Between the side members 36 is a removable blade or knife 39 which extends rearwardly therefrom and into the groove 38 in the projection 21 and has a sharp edge 40 rising from the projection 21 rearwardly of the side members 36, as shown. This knife blade 39 is adapted to be clamped and firmly held in the position shown in Fig. 5 between the side members 36 and within the groove 38 by a clamp member 41 having a top portion 4:2 and side members 43 extending downwardly therefrom and embracing theside members 36 and pivoted thereto by means of a pin 44 extending transversely therethrough. This clamp member 421 may be moved from the position shown in Fig. 5 to the position shown in Fig. 7 to permit the removal of the knife 39; and it may be moved from the position shown inFig. 7 to the position shown in Fig. 5 to clamp and hold the knife after it has been inserted into the position shown in Fig. 5, the space between the side members 36 at the free end of the member 4E1 being such as to force the side members 36 toward each other when the member ll is moved to the position shown in Fig. 5, thereby firmly clamping the knife blade 39.

The member 22, as shown in Fig. 5, is connected to the bar 26 the same as the member 22 shown in Fig. 3.

I claim:

1. In a loom for weaving pile fabrics having the pile formed of weft threads, the combination of the weaving mechanism, heddles having eyes formed therein, means for raising and lowering the heddles, pile wires extending through the eyes of the heddles and forwardly and rearwardly therefrom in the direction of the warp threads, a support over which the rearward portion of the pile wires extend, a weight attachedto the rearward end of each pile wire, to oper ate the same independently of each other, means to hold theforward ends of the pile wires in place, and knives arranged to cut the pile formed above the pile wires.

2. In a loom for weaving pile fabrics having the pile formed of weft threads, the combination of the weaving mechnaism, a heddle, means for raising and lowering the heddle, a pile wire engaged with the heddle and extending forwardly and rearwardly from'the heddle in the direction of the warp threads, a part to which the forward end of the pile wire is attached, a knife carried by said part and arranged to out the pile loops formed above the pile wire, means to reciprocate said part in the direction of the warp threads, and means to draw said pile wire rearwardly and also to permit it to move forwardly when said part is reciprocated.

3. In a loom for weaving pile fabrics having the pile formed of weft threads, the combination of the weaving mechanism, a heddle having an eye formed therein, means for raising and lowering the heddle, a pile wire extending through the eye of the beddle and forwardly and rearwardly therefrom in the direction of the warp threads, a support over which the rearward portion of the pile Wire extends, a weight attached to the rearward end of the pile wire, a part to which the forward end of the pile wire is attached, a knife carried by said part and arranged to cut the pile formed above the pile wire, and means for reciprocating said part in the direction of the warp threads.

4. In a loom for Weaving pile fabrics having the pile formed of weft threads, the combination of the Weaving mechanism, the pile Wire extending in the direction of the warp threads, means for raising and lowering the pile wire, a part to which the forward end of the pile wire is connected, a removable knife carried by said part, and clamping means movable relatively to said part and arranged to clamp said part and said knife together.

5. In a loom for weaving pile fabrics having the pile formed of weft threads, the combination of the weaving mechanism, a pile wire extending in the direction of the warp threads, means for raising and lowering the pile Wire, a part to which the for- Ward end of the pile wire is connected, said part having side members, a removable knife carried by said part and inserted between the side members thereof, and a clamp member embracing said side members and clamping said part and said knife together.

6. In a loom for Weaving pile fabrics having the pile formed of weft threads the combination of the weaving mechanism, a pile wire extending in the direction of the warp threads, means for raising and lowering the pile wire, a part to which the forward end of the pile wire is connected, said part having a bottom portion and side members rising therefrom, a removable knife carried by said part and inserted between the side members thereof, and a clamp memher having a top portion and side members extending downwardly therefrom and embracing the side members of said part and clamping said part and said knife together.

In testimony whereof I affix my signature in the presence of two witnesses.

ANDRE VELUARD.

WVitnesses:

LOUIS B. RANDOLPH, ALEXANDER MCMICHAEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

